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            >papyros documentation</th>
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        <a href="papyros-module.html">Package&nbsp;papyros</a> ::
        Module&nbsp;multithreaded
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<h1 class="epydoc">Source Code for <a href="papyros.multithreaded-module.html">Module papyros.multithreaded</a></h1>
<pre class="py-src">
<a name="L1"></a><tt class="py-lineno"> 1</tt>  <tt class="py-line"><tt class="py-docstring">'''A multithreaded implementation of the papyros API.'''</tt> </tt>
<a name="L2"></a><tt class="py-lineno"> 2</tt>  <tt class="py-line"> </tt>
<a name="L3"></a><tt class="py-lineno"> 3</tt>  <tt class="py-line"><tt class="py-name">__all__</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-string">'MultiThreadedTaskDispatcher'</tt><tt class="py-op">,</tt> <tt class="py-string">'MultiThreadedWorker'</tt><tt class="py-op">,</tt> <tt class="py-string">'detect_cpus'</tt><tt class="py-op">]</tt> </tt>
<a name="L4"></a><tt class="py-lineno"> 4</tt>  <tt class="py-line"> </tt>
<a name="L5"></a><tt class="py-lineno"> 5</tt>  <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">os</tt> </tt>
<a name="L6"></a><tt class="py-lineno"> 6</tt>  <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">time</tt> </tt>
<a name="L7"></a><tt class="py-lineno"> 7</tt>  <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">weakref</tt> </tt>
<a name="L8"></a><tt class="py-lineno"> 8</tt>  <tt class="py-line"><tt class="py-keyword">from</tt> <tt class="py-name">threading</tt> <tt class="py-keyword">import</tt> <tt class="py-name">Thread</tt> </tt>
<a name="L9"></a><tt class="py-lineno"> 9</tt>  <tt class="py-line"> </tt>
<a name="L10"></a><tt class="py-lineno">10</tt>  <tt class="py-line"><tt class="py-keyword">from</tt> <tt id="link-0" class="py-name" targets="Package papyros=papyros-module.html"><a title="papyros" class="py-name" href="#" onclick="return doclink('link-0', 'papyros', 'link-0');">papyros</a></tt> <tt class="py-keyword">import</tt> <tt id="link-1" class="py-name" targets="Variable papyros.log=papyros-module.html#log"><a title="papyros.log" class="py-name" href="#" onclick="return doclink('link-1', 'log', 'link-1');">log</a></tt> </tt>
<a name="L11"></a><tt class="py-lineno">11</tt>  <tt class="py-line"><tt class="py-keyword">from</tt> <tt id="link-2" class="py-name"><a title="papyros" class="py-name" href="#" onclick="return doclink('link-2', 'papyros', 'link-0');">papyros</a></tt><tt class="py-op">.</tt><tt id="link-3" class="py-name" targets="Module papyros.base=papyros.base-module.html"><a title="papyros.base" class="py-name" href="#" onclick="return doclink('link-3', 'base', 'link-3');">base</a></tt> <tt class="py-keyword">import</tt> <tt id="link-4" class="py-name" targets="Class papyros.base.TaskDispatcher=papyros.base.TaskDispatcher-class.html"><a title="papyros.base.TaskDispatcher" class="py-name" href="#" onclick="return doclink('link-4', 'TaskDispatcher', 'link-4');">TaskDispatcher</a></tt><tt class="py-op">,</tt> <tt id="link-5" class="py-name" targets="Class papyros.base.Worker=papyros.base.Worker-class.html"><a title="papyros.base.Worker" class="py-name" href="#" onclick="return doclink('link-5', 'Worker', 'link-5');">Worker</a></tt><tt class="py-op">,</tt> <tt id="link-6" class="py-name" targets="Class papyros.base.ClosedTaskDispatcherError=papyros.base.ClosedTaskDispatcherError-class.html"><a title="papyros.base.ClosedTaskDispatcherError" class="py-name" href="#" onclick="return doclink('link-6', 'ClosedTaskDispatcherError', 'link-6');">ClosedTaskDispatcherError</a></tt> </tt>
<a name="L12"></a><tt class="py-lineno">12</tt>  <tt class="py-line"> </tt>
<a name="L13"></a><tt class="py-lineno">13</tt>  <tt class="py-line"> </tt>
<a name="MultiThreadedTaskDispatcher"></a><div id="MultiThreadedTaskDispatcher-def"><a name="L14"></a><tt class="py-lineno">14</tt> <a class="py-toggle" href="#" id="MultiThreadedTaskDispatcher-toggle" onclick="return toggle('MultiThreadedTaskDispatcher');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="papyros.multithreaded.MultiThreadedTaskDispatcher-class.html">MultiThreadedTaskDispatcher</a><tt class="py-op">(</tt><tt class="py-base-class">TaskDispatcher</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="MultiThreadedTaskDispatcher-collapsed" style="display:none;" pad="++" indent="++++"></div><div id="MultiThreadedTaskDispatcher-expanded"><a name="L15"></a><tt class="py-lineno">15</tt>  <tt class="py-line">    <tt class="py-docstring">'''A multithreaded L{TaskDispatcher}.</tt> </tt>
<a name="L16"></a><tt class="py-lineno">16</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L17"></a><tt class="py-lineno">17</tt>  <tt class="py-line"><tt class="py-docstring">    Each worker of this dispatcher is a separate thread.</tt> </tt>
<a name="L18"></a><tt class="py-lineno">18</tt>  <tt class="py-line"><tt class="py-docstring">    '''</tt> </tt>
<a name="L19"></a><tt class="py-lineno">19</tt>  <tt class="py-line"> </tt>
<a name="MultiThreadedTaskDispatcher.__init__"></a><div id="MultiThreadedTaskDispatcher.__init__-def"><a name="L20"></a><tt class="py-lineno">20</tt> <a class="py-toggle" href="#" id="MultiThreadedTaskDispatcher.__init__-toggle" onclick="return toggle('MultiThreadedTaskDispatcher.__init__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="papyros.multithreaded.MultiThreadedTaskDispatcher-class.html#__init__">__init__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">size</tt><tt class="py-op">=</tt><tt class="py-number">0</tt><tt class="py-op">,</tt> <tt class="py-param">num_workers</tt><tt class="py-op">=</tt><tt class="py-number">0</tt><tt class="py-op">,</tt> <tt class="py-param">timeout</tt><tt class="py-op">=</tt><tt class="py-number">1.0</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="MultiThreadedTaskDispatcher.__init__-collapsed" style="display:none;" pad="++" indent="++++++++"></div><div id="MultiThreadedTaskDispatcher.__init__-expanded"><a name="L21"></a><tt class="py-lineno">21</tt>  <tt class="py-line">        <tt class="py-docstring">'''Initialize this dispatcher.</tt> </tt>
<a name="L22"></a><tt class="py-lineno">22</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L23"></a><tt class="py-lineno">23</tt>  <tt class="py-line"><tt class="py-docstring">        @param size: See L{TaskDispatcher.__init__}.</tt> </tt>
<a name="L24"></a><tt class="py-lineno">24</tt>  <tt class="py-line"><tt class="py-docstring">        @param num_workers: The number of worker threads.</tt> </tt>
<a name="L25"></a><tt class="py-lineno">25</tt>  <tt class="py-line"><tt class="py-docstring">        @param timeout: How long does each worker wait for a task to be assigned</tt> </tt>
<a name="L26"></a><tt class="py-lineno">26</tt>  <tt class="py-line"><tt class="py-docstring">            on each loop.</tt> </tt>
<a name="L27"></a><tt class="py-lineno">27</tt>  <tt class="py-line"><tt class="py-docstring">        '''</tt> </tt>
<a name="L28"></a><tt class="py-lineno">28</tt>  <tt class="py-line">        <tt id="link-7" class="py-name"><a title="papyros.base.TaskDispatcher" class="py-name" href="#" onclick="return doclink('link-7', 'TaskDispatcher', 'link-4');">TaskDispatcher</a></tt><tt class="py-op">.</tt><tt id="link-8" class="py-name" targets="Method papyros.base.TaskDispatcher.__init__()=papyros.base.TaskDispatcher-class.html#__init__,Method papyros.base.TaskQueue.__init__()=papyros.base.TaskQueue-class.html#__init__,Method papyros.base.Worker.__init__()=papyros.base.Worker-class.html#__init__,Method papyros.distributed.PyroTaskDispatcher.__init__()=papyros.distributed.PyroTaskDispatcher-class.html#__init__,Method papyros.distributed.PyroTaskQueue.__init__()=papyros.distributed.PyroTaskQueue-class.html#__init__,Method papyros.distributed.PyroWorker.__init__()=papyros.distributed.PyroWorker-class.html#__init__,Method papyros.dummy.DummyTaskDispatcher.__init__()=papyros.dummy.DummyTaskDispatcher-class.html#__init__,Method papyros.execute.CompositeExecutionDecorator.__init__()=papyros.execute.CompositeExecutionDecorator-class.html#__init__,Method papyros.execute.DefaultTaskExecutioner.__init__()=papyros.execute.DefaultTaskExecutioner-class.html#__init__,Method papyros.execute.ExecuteIterator.__init__()=papyros.execute.ExecuteIterator-class.html#__init__,Method papyros.execute.OrderedExecutionDecorator.__init__()=papyros.execute.OrderedExecutionDecorator-class.html#__init__,Method papyros.execute.TaskExecutionDecorator.__init__()=papyros.execute.TaskExecutionDecorator-class.html#__init__,Method papyros.multithreaded.MultiThreadedTaskDispatcher.__init__()=papyros.multithreaded.MultiThreadedTaskDispatcher-class.html#__init__,Method papyros.multithreaded.MultiThreadedWorker.__init__()=papyros.multithreaded.MultiThreadedWorker-class.html#__init__,Method papyros.task.Task.__init__()=papyros.task.Task-class.html#__init__"><a title="papyros.base.TaskDispatcher.__init__
papyros.base.TaskQueue.__init__
papyros.base.Worker.__init__
papyros.distributed.PyroTaskDispatcher.__init__
papyros.distributed.PyroTaskQueue.__init__
papyros.distributed.PyroWorker.__init__
papyros.dummy.DummyTaskDispatcher.__init__
papyros.execute.CompositeExecutionDecorator.__init__
papyros.execute.DefaultTaskExecutioner.__init__
papyros.execute.ExecuteIterator.__init__
papyros.execute.OrderedExecutionDecorator.__init__
papyros.execute.TaskExecutionDecorator.__init__
papyros.multithreaded.MultiThreadedTaskDispatcher.__init__
papyros.multithreaded.MultiThreadedWorker.__init__
papyros.task.Task.__init__" class="py-name" href="#" onclick="return doclink('link-8', '__init__', 'link-8');">__init__</a></tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">,</tt> <tt class="py-name">size</tt><tt class="py-op">)</tt> </tt>
<a name="L29"></a><tt class="py-lineno">29</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">num_workers</tt><tt class="py-op">:</tt> </tt>
<a name="L30"></a><tt class="py-lineno">30</tt>  <tt class="py-line">            <tt class="py-name">num_workers</tt> <tt class="py-op">=</tt> <tt id="link-9" class="py-name" targets="Function papyros.multithreaded.detect_cpus()=papyros.multithreaded-module.html#detect_cpus"><a title="papyros.multithreaded.detect_cpus" class="py-name" href="#" onclick="return doclink('link-9', 'detect_cpus', 'link-9');">detect_cpus</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L31"></a><tt class="py-lineno">31</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">__workers</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt id="link-10" class="py-name" targets="Class papyros.multithreaded.MultiThreadedWorker=papyros.multithreaded.MultiThreadedWorker-class.html"><a title="papyros.multithreaded.MultiThreadedWorker" class="py-name" href="#" onclick="return doclink('link-10', 'MultiThreadedWorker', 'link-10');">MultiThreadedWorker</a></tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">,</tt> <tt class="py-name">timeout</tt><tt class="py-op">,</tt> <tt class="py-string">'Worker-%d'</tt> <tt class="py-op">%</tt> <tt class="py-name">i</tt><tt class="py-op">)</tt> </tt>
<a name="L32"></a><tt class="py-lineno">32</tt>  <tt class="py-line">                         <tt class="py-keyword">for</tt> <tt class="py-name">i</tt> <tt class="py-keyword">in</tt> <tt class="py-name">xrange</tt><tt class="py-op">(</tt><tt class="py-name">num_workers</tt><tt class="py-op">)</tt><tt class="py-op">]</tt> </tt>
<a name="L33"></a><tt class="py-lineno">33</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">worker</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">__workers</tt><tt class="py-op">:</tt> </tt>
<a name="L34"></a><tt class="py-lineno">34</tt>  <tt class="py-line">            <tt class="py-name">worker</tt><tt class="py-op">.</tt><tt class="py-name">start</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L35"></a><tt class="py-lineno">35</tt>  <tt class="py-line">        <tt id="link-11" class="py-name"><a title="papyros.log" class="py-name" href="#" onclick="return doclink('link-11', 'log', 'link-1');">log</a></tt><tt class="py-op">.</tt><tt class="py-name">debug</tt><tt class="py-op">(</tt><tt class="py-string">'%s started %d worker threads'</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">,</tt> <tt class="py-name">num_workers</tt><tt class="py-op">)</tt> </tt>
</div></div><a name="L36"></a><tt class="py-lineno">36</tt>  <tt class="py-line"> </tt>
<a name="L37"></a><tt class="py-lineno">37</tt>  <tt class="py-line"> </tt>
<a name="MultiThreadedWorker"></a><div id="MultiThreadedWorker-def"><a name="L38"></a><tt class="py-lineno">38</tt> <a class="py-toggle" href="#" id="MultiThreadedWorker-toggle" onclick="return toggle('MultiThreadedWorker');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="papyros.multithreaded.MultiThreadedWorker-class.html">MultiThreadedWorker</a><tt class="py-op">(</tt><tt class="py-base-class">Thread</tt><tt class="py-op">,</tt> <tt class="py-base-class">Worker</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="MultiThreadedWorker-collapsed" style="display:none;" pad="++" indent="++++"></div><div id="MultiThreadedWorker-expanded"><a name="L39"></a><tt class="py-lineno">39</tt>  <tt class="py-line">    <tt class="py-docstring">'''A L{Worker} implemented as a daemon thread.'''</tt> </tt>
<a name="L40"></a><tt class="py-lineno">40</tt>  <tt class="py-line"> </tt>
<a name="MultiThreadedWorker.__init__"></a><div id="MultiThreadedWorker.__init__-def"><a name="L41"></a><tt class="py-lineno">41</tt> <a class="py-toggle" href="#" id="MultiThreadedWorker.__init__-toggle" onclick="return toggle('MultiThreadedWorker.__init__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="papyros.multithreaded.MultiThreadedWorker-class.html#__init__">__init__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">dispatcher</tt><tt class="py-op">,</tt> <tt class="py-param">timeout</tt><tt class="py-op">,</tt> <tt class="py-param">name</tt><tt class="py-op">=</tt><tt class="py-name">None</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="MultiThreadedWorker.__init__-collapsed" style="display:none;" pad="++" indent="++++++++"></div><div id="MultiThreadedWorker.__init__-expanded"><a name="L42"></a><tt class="py-lineno">42</tt>  <tt class="py-line">        <tt class="py-docstring">'''Initialize this worker.</tt> </tt>
<a name="L43"></a><tt class="py-lineno">43</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L44"></a><tt class="py-lineno">44</tt>  <tt class="py-line"><tt class="py-docstring">        @param dispatcher: If not None, L{connect} to this dispatcher.</tt> </tt>
<a name="L45"></a><tt class="py-lineno">45</tt>  <tt class="py-line"><tt class="py-docstring">        @param timeout: How long does this worker wait for a task to be assigned</tt> </tt>
<a name="L46"></a><tt class="py-lineno">46</tt>  <tt class="py-line"><tt class="py-docstring">            on each loop.</tt> </tt>
<a name="L47"></a><tt class="py-lineno">47</tt>  <tt class="py-line"><tt class="py-docstring">        @param name: The name of this thread.</tt> </tt>
<a name="L48"></a><tt class="py-lineno">48</tt>  <tt class="py-line"><tt class="py-docstring">        '''</tt> </tt>
<a name="L49"></a><tt class="py-lineno">49</tt>  <tt class="py-line">        <tt class="py-name">Thread</tt><tt class="py-op">.</tt><tt id="link-12" class="py-name"><a title="papyros.base.TaskDispatcher.__init__
papyros.base.TaskQueue.__init__
papyros.base.Worker.__init__
papyros.distributed.PyroTaskDispatcher.__init__
papyros.distributed.PyroTaskQueue.__init__
papyros.distributed.PyroWorker.__init__
papyros.dummy.DummyTaskDispatcher.__init__
papyros.execute.CompositeExecutionDecorator.__init__
papyros.execute.DefaultTaskExecutioner.__init__
papyros.execute.ExecuteIterator.__init__
papyros.execute.OrderedExecutionDecorator.__init__
papyros.execute.TaskExecutionDecorator.__init__
papyros.multithreaded.MultiThreadedTaskDispatcher.__init__
papyros.multithreaded.MultiThreadedWorker.__init__
papyros.task.Task.__init__" class="py-name" href="#" onclick="return doclink('link-12', '__init__', 'link-8');">__init__</a></tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">,</tt> <tt class="py-name">name</tt><tt class="py-op">=</tt><tt class="py-name">name</tt><tt class="py-op">)</tt> </tt>
<a name="L50"></a><tt class="py-lineno">50</tt>  <tt class="py-line">        <tt id="link-13" class="py-name"><a title="papyros.base.Worker" class="py-name" href="#" onclick="return doclink('link-13', 'Worker', 'link-5');">Worker</a></tt><tt class="py-op">.</tt><tt id="link-14" class="py-name"><a title="papyros.base.TaskDispatcher.__init__
papyros.base.TaskQueue.__init__
papyros.base.Worker.__init__
papyros.distributed.PyroTaskDispatcher.__init__
papyros.distributed.PyroTaskQueue.__init__
papyros.distributed.PyroWorker.__init__
papyros.dummy.DummyTaskDispatcher.__init__
papyros.execute.CompositeExecutionDecorator.__init__
papyros.execute.DefaultTaskExecutioner.__init__
papyros.execute.ExecuteIterator.__init__
papyros.execute.OrderedExecutionDecorator.__init__
papyros.execute.TaskExecutionDecorator.__init__
papyros.multithreaded.MultiThreadedTaskDispatcher.__init__
papyros.multithreaded.MultiThreadedWorker.__init__
papyros.task.Task.__init__" class="py-name" href="#" onclick="return doclink('link-14', '__init__', 'link-8');">__init__</a></tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">,</tt> <tt class="py-name">weakref</tt><tt class="py-op">.</tt><tt class="py-name">proxy</tt><tt class="py-op">(</tt><tt class="py-name">dispatcher</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L51"></a><tt class="py-lineno">51</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">__timeout</tt> <tt class="py-op">=</tt> <tt class="py-name">timeout</tt> </tt>
<a name="L52"></a><tt class="py-lineno">52</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">setDaemon</tt><tt class="py-op">(</tt><tt class="py-name">True</tt><tt class="py-op">)</tt> </tt>
</div><a name="L53"></a><tt class="py-lineno">53</tt>  <tt class="py-line"> </tt>
<a name="MultiThreadedWorker.run"></a><div id="MultiThreadedWorker.run-def"><a name="L54"></a><tt class="py-lineno">54</tt> <a class="py-toggle" href="#" id="MultiThreadedWorker.run-toggle" onclick="return toggle('MultiThreadedWorker.run');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="papyros.multithreaded.MultiThreadedWorker-class.html#run">run</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="MultiThreadedWorker.run-collapsed" style="display:none;" pad="++" indent="++++++++"></div><div id="MultiThreadedWorker.run-expanded"><a name="L55"></a><tt class="py-lineno">55</tt>  <tt class="py-line">        <tt class="py-docstring">'''Task execution loop.</tt> </tt>
<a name="L56"></a><tt class="py-lineno">56</tt>  <tt class="py-line"><tt class="py-docstring"></tt> </tt>
<a name="L57"></a><tt class="py-lineno">57</tt>  <tt class="py-line"><tt class="py-docstring">        Executes assigned tasks continuously until disconnected.</tt> </tt>
<a name="L58"></a><tt class="py-lineno">58</tt>  <tt class="py-line"><tt class="py-docstring">        '''</tt> </tt>
<a name="L59"></a><tt class="py-lineno">59</tt>  <tt class="py-line">        <tt class="py-name">timeout</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">__timeout</tt> </tt>
<a name="L60"></a><tt class="py-lineno">60</tt>  <tt class="py-line">        <tt class="py-keyword">while</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-15" class="py-name" targets="Method papyros.base.Worker.is_connected()=papyros.base.Worker-class.html#is_connected"><a title="papyros.base.Worker.is_connected" class="py-name" href="#" onclick="return doclink('link-15', 'is_connected', 'link-15');">is_connected</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L61"></a><tt class="py-lineno">61</tt>  <tt class="py-line">            <tt class="py-keyword">try</tt><tt class="py-op">:</tt> </tt>
<a name="L62"></a><tt class="py-lineno">62</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-16" class="py-name" targets="Method papyros.base.Worker.execute_task()=papyros.base.Worker-class.html#execute_task"><a title="papyros.base.Worker.execute_task" class="py-name" href="#" onclick="return doclink('link-16', 'execute_task', 'link-16');">execute_task</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L63"></a><tt class="py-lineno">63</tt>  <tt class="py-line">                    <tt class="py-name">time</tt><tt class="py-op">.</tt><tt class="py-name">sleep</tt><tt class="py-op">(</tt><tt class="py-name">timeout</tt><tt class="py-op">)</tt> </tt>
<a name="L64"></a><tt class="py-lineno">64</tt>  <tt class="py-line">            <tt class="py-keyword">except</tt> <tt class="py-op">(</tt><tt id="link-17" class="py-name"><a title="papyros.base.ClosedTaskDispatcherError" class="py-name" href="#" onclick="return doclink('link-17', 'ClosedTaskDispatcherError', 'link-6');">ClosedTaskDispatcherError</a></tt><tt class="py-op">,</tt> <tt class="py-name">weakref</tt><tt class="py-op">.</tt><tt class="py-name">ReferenceError</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L65"></a><tt class="py-lineno">65</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-18" class="py-name" targets="Method papyros.base.Worker.disconnect()=papyros.base.Worker-class.html#disconnect"><a title="papyros.base.Worker.disconnect" class="py-name" href="#" onclick="return doclink('link-18', 'disconnect', 'link-18');">disconnect</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
</div></div><a name="L66"></a><tt class="py-lineno">66</tt>  <tt class="py-line"> </tt>
<a name="L67"></a><tt class="py-lineno">67</tt>  <tt class="py-line"> </tt>
<a name="detect_cpus"></a><div id="detect_cpus-def"><a name="L68"></a><tt class="py-lineno">68</tt> <a class="py-toggle" href="#" id="detect_cpus-toggle" onclick="return toggle('detect_cpus');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="papyros.multithreaded-module.html#detect_cpus">detect_cpus</a><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="detect_cpus-collapsed" style="display:none;" pad="++" indent="++++"></div><div id="detect_cpus-expanded"><a name="L69"></a><tt class="py-lineno">69</tt>  <tt class="py-line">    <tt class="py-docstring">'''Detect the number of CPUs on this machine.'''</tt> </tt>
<a name="L70"></a><tt class="py-lineno">70</tt>  <tt class="py-line">    <tt class="py-comment"># Linux, Unix and MacOS</tt> </tt>
<a name="L71"></a><tt class="py-lineno">71</tt>  <tt class="py-line"><tt class="py-comment"></tt>    <tt class="py-keyword">if</tt> <tt class="py-name">hasattr</tt><tt class="py-op">(</tt><tt class="py-name">os</tt><tt class="py-op">,</tt> <tt class="py-string">'sysconf'</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L72"></a><tt class="py-lineno">72</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-string">'SC_NPROCESSORS_ONLN'</tt> <tt class="py-keyword">in</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">sysconf_names</tt><tt class="py-op">:</tt> </tt>
<a name="L73"></a><tt class="py-lineno">73</tt>  <tt class="py-line">            <tt class="py-comment"># Linux &amp; Unix</tt> </tt>
<a name="L74"></a><tt class="py-lineno">74</tt>  <tt class="py-line"><tt class="py-comment"></tt>            <tt class="py-name">ncpus</tt> <tt class="py-op">=</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">sysconf</tt><tt class="py-op">(</tt><tt class="py-string">'SC_NPROCESSORS_ONLN'</tt><tt class="py-op">)</tt> </tt>
<a name="L75"></a><tt class="py-lineno">75</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">isinstance</tt><tt class="py-op">(</tt><tt class="py-name">ncpus</tt><tt class="py-op">,</tt> <tt class="py-name">int</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-name">ncpus</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L76"></a><tt class="py-lineno">76</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-name">ncpus</tt> </tt>
<a name="L77"></a><tt class="py-lineno">77</tt>  <tt class="py-line">        <tt class="py-keyword">else</tt><tt class="py-op">:</tt> <tt class="py-comment"># OSX</tt> </tt>
<a name="L78"></a><tt class="py-lineno">78</tt>  <tt class="py-line">            <tt class="py-keyword">return</tt> <tt class="py-name">int</tt><tt class="py-op">(</tt><tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">popen2</tt><tt class="py-op">(</tt><tt class="py-string">'sysctl -n hw.ncpu'</tt><tt class="py-op">)</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">read</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L79"></a><tt class="py-lineno">79</tt>  <tt class="py-line">    <tt class="py-comment"># Windows</tt> </tt>
<a name="L80"></a><tt class="py-lineno">80</tt>  <tt class="py-line"><tt class="py-comment"></tt>    <tt class="py-keyword">if</tt> <tt class="py-string">'NUMBER_OF_PROCESSORS'</tt> <tt class="py-keyword">in</tt> <tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">environ</tt><tt class="py-op">:</tt> </tt>
<a name="L81"></a><tt class="py-lineno">81</tt>  <tt class="py-line">            <tt class="py-name">ncpus</tt> <tt class="py-op">=</tt> <tt class="py-name">int</tt><tt class="py-op">(</tt><tt class="py-name">os</tt><tt class="py-op">.</tt><tt class="py-name">environ</tt><tt class="py-op">[</tt><tt class="py-string">'NUMBER_OF_PROCESSORS'</tt><tt class="py-op">]</tt><tt class="py-op">)</tt><tt class="py-op">;</tt> </tt>
<a name="L82"></a><tt class="py-lineno">82</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">ncpus</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L83"></a><tt class="py-lineno">83</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-name">ncpus</tt> </tt>
<a name="L84"></a><tt class="py-lineno">84</tt>  <tt class="py-line">    <tt class="py-keyword">return</tt> <tt class="py-number">1</tt> <tt class="py-comment"># default</tt> </tt>
</div><a name="L85"></a><tt class="py-lineno">85</tt>  <tt class="py-line"> </tt><script type="text/javascript">
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